GM Service Manual Online
For 1990-2009 cars only

Water Pump 2.2L

Coolant Pump Description (2.2L)

This coolant pump is a centrifugal impeller type. It has six impellers and is coupled to the cooling fan. The pump body mounts to the front cover. The pump uses balance type, mechanical seals. The impeller spins on enclosed type, ball bearings for maximum durability.

Water Pump 4.3L

Coolant Pump Description (4.3L)

This coolant pump is a die-cast, centrifugal vane, impeller type. The impeller spins with a steel shaft rotating on permanently lubricated ball bearings.